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Wear-resistant metal hose

A metal hose and corrugated pipe technology, which is applied in the field of pipeline safety devices, can solve the problems of short service life and low wear resistance of metal hoses, and achieve the effects of easy manufacture, simple structure, and increased service life

Pending Publication Date: 2017-03-22
JIANGSU ZHONGYUAN CONDUIT EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention mainly aims at the problems of low wear resistance and short service life of the metal hose in the prior art, and proposes a wear-resistant metal hose with simple structure and easy manufacture

Method used

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Embodiment Construction

[0014] In the following, the present invention will be further explained based on the drawings and the embodiments.

[0015] figure 1 The wear-resistant metal hose shown is applied to a pulverized coal boiler of a metallurgical enterprise. It consists of a pipe joint 1, a bellows 2, an outer mesh sleeve 3, a spring 4, and an inner mesh sleeve 5. The corrugated tube 2 is the main component of the metal hose. The outer wall of the corrugated tube 2 is made of a thin plate and the outer mesh sleeve 3 is sheathed. After the corrugated tube 2 and the outer mesh sleeve 3 are sleeved, the two ports are respectively connected with the matched tube Joint 2 is hermetically connected. When the pulverized coal flow passes, in order to isolate the pulverized coal flow from directly contacting the inner wall of the corrugated pipe 2, the present invention lines the inner cavity of the corrugated pipe 2 with a spring 4 sleeved, a sleeved spring 4, an outer wall sleeve, an inner mesh sleeve 5. ...

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Abstract

The invention discloses a wear-resistant metal hose. The wear-resistant metal hose consists of joints, a corrugated tube, an outer net sleeve, a spring and an inner net sleeve. The outer net sleeve sleeves the corrugated tube, and after the outer net sleeve sleeves the corrugated tube, two ports of the combination of the corrugated tube and the outer net sleeve are respectively connected with the matched joints in a sealed manner. A liner of a cavity of the corrugated tube is combined with the spring in a sleeving manner, the inner net sleeve sleeves the outer wall of the spring, and two ports of the combination of the spring and the inner net sleeve positioned on the inner layer are also respectively connected with the matched joints in a sealed manner, so that a protecting structure of the spring to the cavity of the corrugated tube is formed. The matched spring is a flexible body, on the basis of improvement of wear resistance, the flexible structural feature of the corrugated tube is not changed, and therefore, the wear-resistant metal hose has enough flexibility to absorb or compensate movement of the hose. The metal hose has reasonable wear resistance and flexibility, the repairing and changing frequency is greatly reduced, and therefore, conditions are created for improvement of work efficiency and saving of costs.

Description

Technical field [0001] The present invention relates to a pipeline safety device, in particular, the present invention relates to a metal hose used to eliminate internal stress in a supporting pipeline, in particular to a metal hose with super wear resistance. Background technique [0002] Nowadays, with the implementation of the government's energy saving and emission reduction policies, most of the coal-fired boilers of high energy consumption enterprises such as metallurgy, cement, thermal power plants use pulverized coal as fuel, and the pulverized coal is directly piped to the furnace for combustion. Due to the large temperature difference between the pulverized coal pipeline and the boiler and adjacent equipment, the internal stress caused by thermal expansion and contraction at the joint is very problematic. For pipeline safety, metal hoses must be connected in series in the pulverized coal pipeline according to relevant regulations, and the flexibility of the metal hoses ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L11/15F16L57/06
CPCF16L11/15F16L57/06
Inventor 曹月凤曹荣林陈亚群
Owner JIANGSU ZHONGYUAN CONDUIT EQUIP
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